From 014c7f90478780b18d0e33d456483178c8dcc665 Mon Sep 17 00:00:00 2001
From: Victor Stinner <vstinner@python.org>
Date: Wed, 16 Apr 2025 15:56:58 +0200
Subject: gh-130052: Fix search_map_for_section() error handling (#132594)

* Don't call close() if the file descriptor is negative.
* If close() fails, chain the existing exception.
---
 Modules/_testexternalinspection.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Modules/_testexternalinspection.c b/Modules/_testexternalinspection.c
index e90cfb9..01fe700 100644
--- a/Modules/_testexternalinspection.c
+++ b/Modules/_testexternalinspection.c
@@ -400,8 +400,10 @@ search_map_for_section(pid_t pid, const char* secname, const char* map)
     }
 
 exit:
-    if (close(fd) != 0) {
+    if (fd >= 0 && close(fd) != 0) {
+        PyObject *exc = PyErr_GetRaisedException();
         PyErr_SetFromErrno(PyExc_OSError);
+        _PyErr_ChainExceptions1(exc);
     }
     if (file_memory != NULL) {
         munmap(file_memory, file_stats.st_size);
-- 
cgit v0.12